@article{DAN_1965_163_3_a7,
     author = {\`E. A. Loginov},
     title = {On regular three-color coloring},
     journal = {Doklady Akademii Nauk},
     pages = {569--572},
     publisher = {mathdoc},
     volume = {163},
     number = {3},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_163_3_a7/}
}